Chapter 2 Chemistry Flashcards
Anything that has mass and occupies space
Matter
3 states of matter
Solid, liquid & gas
Capacity to do work or put matter into motion
Energy
Energy in action
Kinetic energy
Stored energy
Potential energy
Substances that cannot be broken down into simpler substances by ordinary chemical methods
Elements
4 elements that make up 96% of the body
Carbon, hydrogen, oxygen, nitrogen
Alter in bonds of chemical substances
Chemical energy
Results from movement of charger particles
Electrical energy
Directly involved in moving matter
Mechanical energy
Travels in waves
Radiant or electromagnetic energy
What makes up the atomic nucleus?
Protons and neutrons
amu
Atomic mass unit
Atoms like to fill their valance shell
Octet rule
One or two letter chemical shorthand for each element
Atomic symbol